Question

how do we tell the values of a and b in the following equation: ax + by = 1

they provide a graph with a line angled down and to the right like so \

Answer 1

you might want to put in in y-intercept form

Answer 2

right, so by=-ax+1

Answer 3

the question is asking which of the following must be true:

1: a>0 and b< 0
2: a >0 and b > 0
3: a<0 and b <0
4: a <0 and b>0
5: a = 0 and b>0

Answer 4

i was thinking option 1, but it's not right and i don't know why